You will NEVER find a shoo-fly pie in York. I am from there, and the prepared ones I ate all came from Lancaster County. They used to have great baked goods in York at the venerable Central Market House, but that has turned into a more-or-less flea market. Had it not been for my mother-in-law I would probably never have tasted a homemade one. My best friend in York also shared her recipe for shoo-fly cake, a molasses cake with a crumb topping. York County cooks are, for the most part, not known for their great culinary concoctions. This is not really a criticism, but I did find that the four basic food groups in York County are flour, fat, sugar and salt. It was not until I ate in a lot of good restaurants that I overcame that syndrome. I love York but its cooking is something else.